Albedo enhancement certainly seems the most possible, such as with a quick flight to layer over rock dust, but the potential benefit is so limited. Cloud seedi

Albedo enhancement certainly seems the most possible, such as with a quick flight to layer over rock dust, but the potential benefit is so limited. Cloud seeding perhaps, but only if the moisture is there in the air. Fog is a fun thought… ablate the outer millimeter to create an insulating layer. You could bore tunnels in the ice and circulate coolant, but you would accelerate melting of the upper portion to fight melting on the lower.